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Image of <i>Polygonum douglasii</i> ssp. <i>johnstonii</i>
Creatures » … » Plants » … » Dicotyledons » … » Knotweed Family » …

Douglas' Knotweed

Polygonum douglasii Greene

Scientific Names

Preferred Names

Polygonum douglasii Greene
Species recognized by EOL Dynamic Hierarchy April 2022
Reference taxon from Synonymic Checklists of the Vascular Plants of the World in Species 2000 & ITIS Catalogue of Life
Polygonum douglasii
Species recognized by wikipedia VI, wikipedia UK, Burkina Faso Species List, Canada Species List, North Pacific Species List, South Atlantic Species List, wikipedia AZ, NCBI, and United States Species List
Polygonum douglasii
Recognized by CalPhotos and National Wetland Plant List USA
Polygonum douglasii Greene
Species recognized by EOL Dynamic Hierarchy 1.1, EOL Dynamic Hierarchy 1.1, and GBIF classification
Polygonum douglasii Greene
Recognized by eFloras
Polygonum douglasii
Species recognized by iDigBio type specimen records, wikidata_hierarchy tar gz, USDA PLANTS images, wikipedia EN, Wikidata Common Names, Wikimedia Commons, Barcode of Life Data Systems, iNaturalist data coverage, and TRY database summary
Polygonum douglasii
Recognized by BHL data coverage
Polygonum douglasii Greene
Species recognized by Catalogue of Life 26 March 2024, iNaturalist, USDA Plants data, Integrated Taxonomic Information System (ITIS) Taxonomic Hierarchy, GBIF data coverage, and EOL Dynamic Hierarchy Version 2.2.4
Polygonum douglasii Greene
Recognized by NMNH type specimens
Polygonum tenue var. commune Engelmann
Recognized by iDigBio type specimen records
Polygonum tenue var. latifolium Engelmann
Recognized by iDigBio type specimen records

Alternative Names

Polygonum buxiforme var. montanum (Small) R. J. Davis
Not accepted according to EOL Dynamic Hierarchy April 2022
Reference taxon from Synonymic Checklists of the Vascular Plants of the World in Species 2000 & ITIS Catalogue of Life
Polygonum douglasii var. latifolium (Engelm.) Greene
Not accepted according to EOL Dynamic Hierarchy April 2022
Reference taxon from Synonymic Checklists of the Vascular Plants of the World in Species 2000 & ITIS Catalogue of Life
Polygonum montanum (Small) Greene
Not accepted according to EOL Dynamic Hierarchy April 2022
Reference taxon from Synonymic Checklists of the Vascular Plants of the World in Species 2000 & ITIS Catalogue of Life
Polygonum tenue var. commune Engelm.
Not accepted according to EOL Dynamic Hierarchy April 2022
Reference taxon from Synonymic Checklists of the Vascular Plants of the World in Species 2000 & ITIS Catalogue of Life
Polygonum tenue var. latifolium Engelm.
Not accepted according to EOL Dynamic Hierarchy April 2022
Reference taxon from Synonymic Checklists of the Vascular Plants of the World in Species 2000 & ITIS Catalogue of Life
Polygonum buxiforme var. montanum (Small) R. J. Davis
Synonym according to EOL Dynamic Hierarchy 1.1 and EOL Dynamic Hierarchy 1.1
Polygonum douglasii var. consimile Small
Doubtful according to GBIF classification
Polygonum douglasii var. latifolium (Engelm.) Greene
Synonym according to EOL Dynamic Hierarchy 1.1 and EOL Dynamic Hierarchy 1.1
Polygonum montanum (Small) Greene
Synonym according to EOL Dynamic Hierarchy 1.1 and EOL Dynamic Hierarchy 1.1
Polygonum tenue var. commune Engelm.
Synonym according to EOL Dynamic Hierarchy 1.1 and EOL Dynamic Hierarchy 1.1
Polygonum tenue var. latifolium Engelm.
Synonym according to EOL Dynamic Hierarchy 1.1 and EOL Dynamic Hierarchy 1.1
Polygonum buxiforme f. montanum Brenckle
Synonym according to Catalogue of Life 26 March 2024
Polygonum buxiforme var. montanum (Brenckle) R. J. Davis
Synonym according to Catalogue of Life 26 March 2024
Polygonum buxiforme var. montanum (Small) R. J. Davis
Not accepted according to Integrated Taxonomic Information System (ITIS) Taxonomic Hierarchy and EOL Dynamic Hierarchy Version 2.2.4
Polygonum commixtum Greene
Synonym according to Catalogue of Life 26 March 2024
Polygonum crassum var. angustifolium Lojac.
Synonym according to Catalogue of Life 26 March 2024
Polygonum crassum var. magnum Lojac.
Synonym according to Catalogue of Life 26 March 2024
Polygonum douglasii subsp. douglasii Greene
Not accepted according to Integrated Taxonomic Information System (ITIS) Taxonomic Hierarchy
Polygonum douglasii var. latifolium (Engelm.) Greene
Not accepted according to Integrated Taxonomic Information System (ITIS) Taxonomic Hierarchy and EOL Dynamic Hierarchy Version 2.2.4
Polygonum douglasii var. latifolium (Engelm.) Greene
Synonym according to Catalogue of Life 26 March 2024
Polygonum douglasii var. montanum Small
Synonym according to Catalogue of Life 26 March 2024
Polygonum emaciatum A. Nelson
Not accepted according to Integrated Taxonomic Information System (ITIS) Taxonomic Hierarchy
Polygonum howellii Greene
Synonym according to Catalogue of Life 26 March 2024
Polygonum montanum (Small) Greene
Not accepted according to EOL Dynamic Hierarchy Version 2.2.4
Polygonum montanum (Small) Greene
Synonym according to Catalogue of Life 26 March 2024
Polygonum montanum Small
Not accepted according to Integrated Taxonomic Information System (ITIS) Taxonomic Hierarchy
Polygonum pannosum S. S. Sharp ex A. Nelson
Synonym according to Catalogue of Life 26 March 2024
Polygonum tenue var. commune Engelm.
Not accepted according to EOL Dynamic Hierarchy Version 2.2.4
Polygonum tenue var. commune Engelm.
Synonym according to Catalogue of Life 26 March 2024
Polygonum tenue var. latifolium Engelm.
Not accepted according to EOL Dynamic Hierarchy Version 2.2.4
Polygonum tenue var. latifolium Engelm.
Synonym according to Catalogue of Life 26 March 2024
Polygonum vagans Greene
Synonym according to Catalogue of Life 26 March 2024

Common Names

English

Douglas' Knotweed
prefer
Recognized by National Wetland Plant List USA
Douglas' knotweed preferred
Recognized by USDA PLANTS images and Wikidata Common Names

Navajo; Navaho

Kétłʼáhí preferred
Recognized by Wikidata Common Names

Ukrainian

Гірчак гірський preferred
Recognized by Wikidata Common Names

Curated hierarchies for Polygonum douglasii Greene

EOL Dynamic Hierarchy April 2022

Life
Cellular Organisms
Eukaryota
Archaeplastida
Chloroplastida
Streptophyta
Embryophytes
Tracheophyta
Spermatophytes
Angiosperms
Eudicots
Superasterids
Caryophyllales
Polygonaceae
Polygonum
Polygonum douglasii Greene (this page)
Polygonum acerosum Ledeb. ex Meisn.
Polygonum acetosum Bieb.
Polygonum afghanicum Meisn.
Polygonum afromontanum Greenway
Polygonum afyonicum Leblebici & Gemici
Polygonum albanicum Jáv.
Polygonum arenastrum Boreau
Polygonum arussense Chiov.
Polygonum aschersonianum H. Gross
Polygonum austiniae Greene
Polygonum aviculare L.
Polygonum bellardii All.
Polygonum biaristatum Aitch. & Hemsl.
Polygonum bidwelliae S. Wats.
Polygonum bolanderi Brew. ex A. Gray
Polygonum borgoicum N. N. Tupitsyna
Polygonum bornmuelleri Litwinow
Polygonum brasiliense K. Koch
Polygonum breviarticulatum Rech. fil.
Polygonum californicum Meisn.
Polygonum cascadense W. H. Baker
Polygonum cashmirense H. Gross
Polygonum cognatum Meisn.
Polygonum corrigioloides Jaub. & Spach
Polygonum crispatum C. B. Clarke
Polygonum czukavinae Sojak
Polygonum ebracteatum A. H. Munshi & G. N. Javeid
Polygonum ekimianum E. Leblebici, H. Duman & Z. Aytaç
Polygonum engelmannii Greene
Polygonum erectum L.
Polygonum fibrilliferum Kom.
Polygonum glandulosopilosum De Wild.
Polygonum glaucescens N. A. Ivanova ex N. N. Tupitsyna
Polygonum glaucum Nutt.
Polygonum graminifolium Heuffel
Polygonum hassanabdalicum M. N. Chaudhri
Polygonum heterosepalum M. E. Peck & Ownbey
Polygonum huichunense F. Z. Li, Y. T. Hou & C. Y. Qu
Polygonum icaricum Rech. fil.
Polygonum idaeum Hayek
Polygonum ilanense Liu & Ou
Polygonum istanbulicum M. Keskin
Polygonum karacae Zielinski & Botratynski
Polygonum kelloggii Greene
Polygonum lacerum Kunth
Polygonum leptocarpum B. L. Rob.
Polygonum libani Boiss.
Polygonum longipes Halácsy & Charrel
Polygonum marinense T. R. Mert. & Raven
Polygonum maritimum L.
Polygonum melihae Gemici & Kit Tan
Polygonum mezianum H. Gross
Polygonum minimum S. Wats.
Polygonum minutissimum Z. Wei & Yun-bing Chang
Polygonum norvegicum (Sam.) G. Samuelsson ex Lid
Polygonum obtusifolium Täckh. & Boulos
Polygonum olivascens Rech. fil. & Schiman-Czeika
Polygonum oxyspermum Mey. & Bunge
Polygonum palaestinum Zoh.
Polygonum papillosum P. Hartvig
Polygonum paronychia Cham. & Schltdl.
Polygonum parryi Greene
Polygonum patulum Bieb.
Polygonum plebejum R. Br.
Polygonum podlechii Rech. fil. & Schiman-Czeika
Polygonum polycnemoides Jaub. & Spach
Polygonum polygaloides Meisn.
Polygonum praelongum Coode & Cullen
Polygonum propinquum Ledeb.
Polygonum psammophilum (Bordz. ex Tzvel.) Tzvel.
Polygonum pteranthum Kitagawa
Polygonum ramosissimum Michx.
Polygonum ramuliflorum Kitagawa
Polygonum recumbens Royle ex Bab.
Polygonum rigidum Skvortz.
Polygonum robertii Loisel.
Polygonum robynsii De Wild.
Polygonum romanum Jacq.
Polygonum rottboellioides Jaub. & Spach
Polygonum ryukyuense Kitagawa
Polygonum salsugineum Bieb.
Polygonum samsunicum Yildirimli & Leblebici
Polygonum sawatchense Small
Polygonum schistosum Czuk.
Polygonum scoparium Req. ex Loisel.
Polygonum setosum Jacq.
Polygonum shastense Brewer ex A. Gray
Polygonum shiheziense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum shuchengense Z. Z. Zhou
Polygonum sivasicum Kit Tan & Yildiz
Polygonum striatulum Robinson
Polygonum subaphyllum G. P. Sumnevicz
Polygonum sumatranum De Bruyn
Polygonum tachengense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum tenoreanum Nardi & Raffaelli
Polygonum tenuissimum A. I. Baranov & Skvortz. ex Vorosh.
Polygonum thymifolium Jaub. & Spach
Polygonum uniflorum Y. X. Ma & Y. T. Zhao
Polygonum urumqiense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum volchovense N. N. Tzvel.
45 additional siblings truncated for brevity.
See the resource file for a full list.

Catalogue of Life 26 March 2024

Biota
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales Juss. ex Bercht. & J. Presl
Polygonaceae Juss.
Polygonoideae Eaton
Polygonum L.
Polygonum douglasii Greene (this page)
Polygonum acerosum Ledeb. ex Meisn.
Polygonum acetosum M. Bieb.
Polygonum afghanicum Meisn.
Polygonum afromontanum Greenway
Polygonum afyonicum Leblebici & Gemici
Polygonum ajanense (Regel & Tiling) Grig.
Polygonum albanicum Jáv.
Polygonum aleppicum Boiss. & Hausskn.
Polygonum amgense Michaleva & Perfiljeva
Polygonum arenarium Waldst. & Kit.
Polygonum arenastrum Boreau
Polygonum argyrocoleum Steud. ex Kunze
Polygonum arussense Chiov.
Polygonum aschersonianum H. Gross
Polygonum austiniae Greene
Polygonum aviculare L.
Polygonum balansae Boiss.
Polygonum biaristatum Aitch. & Hemsl.
Polygonum bidwelliae S. Watson
Polygonum bolanderi W. H. Brewer ex A. Gray
Polygonum boreale (Lange) Small
Polygonum borgoicum Tupitz.
Polygonum brasiliense K. Koch
Polygonum breviarticulatum Rech. fil.
Polygonum californicum Meisn.
Polygonum cappadocicum Boiss. & Balansa
Polygonum cascadense W. H. Baker
Polygonum cashmirense H. Gross
Polygonum cedrorum Boiss. & Kotschy ex Boiss.
Polygonum cognatum Meisn.
Polygonum corrigioloides Jaub. & Spach
Polygonum czukavinae Soják
Polygonum ekimianum Leblebici, H. Duman & Aytaç
Polygonum engelmannii Greene
Polygonum equisetiforme Sm.
Polygonum excelsius (Karlsson) Uotila
Polygonum fibrilliferum Kom.
Polygonum fusco-ochreatum Kom.
Polygonum gabrielae Costea & Tardif
Polygonum graminifolium Heuff.
Polygonum heterosepalum M. Peck & Ownbey
Polygonum hohuanshanense S. S. Ying
Polygonum huichunense F. Z. Li, Y. T. Hou & C. Y. Qu
Polygonum hyrcanicum Rech. fil.
Polygonum icaricum Rech. fil.
Polygonum idaeum Hayek
Polygonum ilanense Y. C. Liu & C. H. Ou
Polygonum inflexum Kom.
Polygonum intramongolicum A. J. Li
Polygonum istanbulicum M. Keskin
Polygonum karacae Ziel. & Borat.
Polygonum kelloggii Greene
Polygonum kolumense A. P. Khokhr.
Polygonum lacerum Kunth
Polygonum leptocarpum B. L. Rob.
Polygonum libani Boiss.
Polygonum longiocreatum Bartlett
Polygonum longipes Halácsy & Charrel
Polygonum luzuloides Jaub. & Spach
Polygonum majus (Meisn.) Piper
Polygonum marinense T. R. Mert. & P. H. Raven
Polygonum maritimum L.
Polygonum mesembricum Chrtek
Polygonum mezianum H. Gross
Polygonum minimum S. Watson
Polygonum minutissimum Z. Wei & Y. B. Chang
Polygonum molliiforme Boiss.
Polygonum norvegicum (Sam.) Sam. ex Lid
Polygonum nuttallii Small
Polygonum olivascens Rech. fil. & Schiman-Czeika
Polygonum oxyspermum C. A. Mey. & Bunge
Polygonum palaestinum Zohary
Polygonum papillosum Hartvig
Polygonum paronychioides C. A. Mey.
Polygonum parryi Greene
Polygonum patuliforme Vorosch.
Polygonum patulum M. Bieb.
Polygonum plebeium R. Br.
Polygonum podlechii Rech. fil. & Schiman-Czeika
Polygonum polycnemoides Jaub. & Spach
Polygonum polygaloides Meisn.
Polygonum raii Bab.
Polygonum ramosissimum Michx.
Polygonum ramuliflorum Kitag.
Polygonum recumbens Royle ex Bab.
Polygonum rigidum Skvortsov
Polygonum roberti Loisel.
Polygonum robynsii De Wild.
Polygonum romanum Jacq.
Polygonum rottboellioides Jaub. & Spach
Polygonum ryukyuense Kitag.
Polygonum sabulosum Vorosch.
Polygonum salebrosum Coode & Cullen
Polygonum salsugineum M. Bieb.
Polygonum samsunicum Yild. & Leblebici
Polygonum sanguinaria J. Rémy
Polygonum sarobiense Rech. fil.
Polygonum sawatchense Small
Polygonum schistosum Czukav.
Polygonum scoparium Req. ex Loisel.
51 additional siblings truncated for brevity.
See the resource file for a full list.

Dynamic Hierarchy Version 2.2.3

Polygonum douglasii Greene (this page)
Polygonum acerosum Ledeb. ex Meisn.
Polygonum acetosum Bieb.
Polygonum afghanicum Meisn.
Polygonum afromontanum Greenway
Polygonum afyonicum Leblebici & Gemici
Polygonum albanicum Jáv.
Polygonum arenastrum Boreau
Polygonum arussense Chiov.
Polygonum aschersonianum H. Gross
Polygonum austiniae Greene
Polygonum aviculare L.
Polygonum bellardii All.
Polygonum biaristatum Aitch. & Hemsl.
Polygonum bidwelliae S. Wats.
Polygonum bolanderi Brew. ex A. Gray
Polygonum borgoicum N. N. Tupitsyna
Polygonum bornmuelleri Litwinow
Polygonum brasiliense K. Koch
Polygonum breviarticulatum Rech. fil.
Polygonum californicum Meisn.
Polygonum cascadense W. H. Baker
Polygonum cashmirense H. Gross
Polygonum cognatum Meisn.
Polygonum corrigioloides Jaub. & Spach
Polygonum crispatum C. B. Clarke
Polygonum czukavinae Sojak
Polygonum ekimianum E. Leblebici, H. Duman & Z. Aytaç
Polygonum engelmannii Greene
Polygonum erectum L.
Polygonum fibrilliferum Kom.
Polygonum glandulosopilosum De Wild.
Polygonum glaucescens N. A. Ivanova ex N. N. Tupitsyna
Polygonum glaucum Nutt.
Polygonum graminifolium Heuffel
Polygonum heterosepalum M. E. Peck & Ownbey
Polygonum huichunense F. Z. Li, Y. T. Hou & C. Y. Qu
Polygonum icaricum Rech. fil.
Polygonum idaeum Hayek
Polygonum ilanense Liu & Ou
Polygonum istanbulicum M. Keskin
Polygonum karacae Zielinski & Botratynski
Polygonum kelloggii Greene
Polygonum lacerum Kunth
Polygonum leptocarpum B. L. Rob.
Polygonum libani Boiss.
Polygonum longipes Halácsy & Charrel
Polygonum marinense T. R. Mert. & Raven
Polygonum maritimum L.
Polygonum melihae Gemici & Kit Tan
Polygonum mesembricum Chrtek
Polygonum mezianum H. Gross
Polygonum minimum S. Wats.
Polygonum minutissimum Z. Wei & Yun-bing Chang
Polygonum norvegicum (Sam.) G. Samuelsson ex Lid
Polygonum nuttallii Small
Polygonum olivascens Rech. fil. & Schiman-Czeika
Polygonum oxyspermum Mey. & Bunge
Polygonum palaestinum Zoh.
Polygonum papillosum P. Hartvig
Polygonum paronychia Cham. & Schltdl.
Polygonum parryi Greene
Polygonum patulum Bieb.
Polygonum plebejum R. Br.
Polygonum podlechii Rech. fil. & Schiman-Czeika
Polygonum polycnemoides Jaub. & Spach
Polygonum polygaloides Meisn.
Polygonum praelongum Coode & Cullen
Polygonum propinquum Ledeb.
Polygonum psammophilum (Bordz. ex Tzvel.) Tzvel.
Polygonum ramosissimum Michx.
Polygonum ramuliflorum Kitagawa
Polygonum recumbens Royle ex Bab.
Polygonum rigidum Skvortz.
Polygonum robertii Loisel.
Polygonum robynsii De Wild.
Polygonum romanum Jacq.
Polygonum rottboellioides Jaub. & Spach
Polygonum ryukyuense Kitagawa
Polygonum salsugineum Bieb.
Polygonum samsunicum Yildirimli & Leblebici
Polygonum sawatchense Small
Polygonum schistosum Czuk.
Polygonum scoparium Req. ex Loisel.
Polygonum setosum Jacq.
Polygonum shastense Brewer ex A. Gray
Polygonum shiheziense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum shuchengense Z. Z. Zhou
Polygonum sivasicum Kit Tan & Yildiz
Polygonum snijmaniae S. Ortiz
Polygonum striatulum Robinson
Polygonum subaphyllum G. P. Sumnevicz
Polygonum sumatranum De Bruyn
Polygonum tachengense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum tenue Michx.
Polygonum tenuissimum A. I. Baranov & Skvortz. ex Vorosh.
Polygonum thymifolium Jaub. & Spach
Polygonum turkestanicum Sumnev.
Polygonum uniflorum Y. X. Ma & Y. T. Zhao
Polygonum urumqiense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum volchovense N. N. Tzvel.
35 additional siblings truncated for brevity.
See the resource file for a full list.

EOL Dynamic Hierarchy 1.1

Life
Cellular Organisms
Eukaryota
Archaeplastida
Chloroplastida
Streptophyta
Embryophytes
Tracheophyta
Spermatophytes
Angiosperms
Eudicots
Superasterids
Caryophyllales
Polygonaceae
Polygonum
Polygonum douglasii Greene (this page)
Polygonum acerosum Ledeb. ex Meisn.
Polygonum acetosum Bieb.
Polygonum afghanicum Meisn.
Polygonum afromontanum Greenway
Polygonum afyonicum Leblebici & Gemici
Polygonum albanicum Jáv.
Polygonum arenastrum Boreau
Polygonum arussense Chiov.
Polygonum aschersonianum H. Gross
Polygonum austiniae Greene
Polygonum aviculare L.
Polygonum bellardii All.
Polygonum biaristatum Aitch. & Hemsl.
Polygonum bidwelliae S. Wats.
Polygonum bolanderi Brew. ex A. Gray
Polygonum borgoicum N. N. Tupitsyna
Polygonum bornmuelleri Litwinow
Polygonum brasiliense K. Koch
Polygonum breviarticulatum Rech. fil.
Polygonum californicum Meisn.
Polygonum cascadense W. H. Baker
Polygonum cashmirense H. Gross
Polygonum cognatum Meisn.
Polygonum corrigioloides Jaub. & Spach
Polygonum crispatum C. B. Clarke
Polygonum czukavinae Sojak
Polygonum ebracteatum A. H. Munshi & G. N. Javeid
Polygonum ekimianum E. Leblebici, H. Duman & Z. Aytaç
Polygonum engelmannii Greene
Polygonum erectum L.
Polygonum fibrilliferum Kom.
Polygonum glandulosopilosum De Wild.
Polygonum glaucescens N. A. Ivanova ex N. N. Tupitsyna
Polygonum glaucum Nutt.
Polygonum graminifolium Heuffel
Polygonum hassanabdalicum M. N. Chaudhri
Polygonum heterosepalum M. E. Peck & Ownbey
Polygonum huichunense F. Z. Li, Y. T. Hou & C. Y. Qu
Polygonum icaricum Rech. fil.
Polygonum idaeum Hayek
Polygonum ilanense Liu & Ou
Polygonum istanbulicum M. Keskin
Polygonum karacae Zielinski & Botratynski
Polygonum kelloggii Greene
Polygonum lacerum Kunth
Polygonum leptocarpum B. L. Rob.
Polygonum libani Boiss.
Polygonum longipes Halácsy & Charrel
Polygonum marinense T. R. Mert. & Raven
Polygonum maritimum L.
Polygonum melihae Gemici & Kit Tan
Polygonum mezianum H. Gross
Polygonum minimum S. Wats.
Polygonum minutissimum Z. Wei & Yun-bing Chang
Polygonum norvegicum (Sam.) G. Samuelsson ex Lid
Polygonum obtusifolium Tackh. & Boulos
Polygonum olivascens Rech. fil. & Schiman-Czeika
Polygonum oxyspermum Mey. & Bunge
Polygonum palaestinum Zoh.
Polygonum papillosum P. Hartvig
Polygonum paronychia Cham. & Schltdl.
Polygonum parryi Greene
Polygonum patulum Bieb.
Polygonum plebejum R. Br.
Polygonum podlechii Rech. fil. & Schiman-Czeika
Polygonum polycnemoides Jaub. & Spach
Polygonum polygaloides Meisn.
Polygonum praelongum Coode & Cullen
Polygonum propinquum Ledeb.
Polygonum psammophilum (Bordz. ex Tzvel.) Tzvel.
Polygonum pteranthum Kitagawa
Polygonum ramosissimum Michx.
Polygonum ramuliflorum Kitagawa
Polygonum recumbens Royle ex Bab.
Polygonum rigidum Skvortz.
Polygonum robertii Loisel.
Polygonum robynsii De Wild.
Polygonum romanum Jacq.
Polygonum rottboellioides Jaub. & Spach
Polygonum ryukyuense Kitagawa
Polygonum salsugineum Bieb.
Polygonum samsunicum Yildirimli & Leblebici
Polygonum sawatchense Small
Polygonum schistosum Czuk.
Polygonum scoparium Req. ex Loisel.
Polygonum setosum Jacq.
Polygonum shastense Brewer ex A. Gray
Polygonum shiheziense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum shuchengense Z. Z. Zhou
Polygonum sivasicum Kit Tan & Yildiz
Polygonum striatulum Robinson
Polygonum subaphyllum G. P. Sumnevicz
Polygonum sumatranum De Bruyn
Polygonum tachengense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum tenoreanum Nardi & Raffaelli
Polygonum tenuissimum A. I. Baranov & Skvortz. ex Vorosh.
Polygonum thymifolium Jaub. & Spach
Polygonum uniflorum Y. X. Ma & Y. T. Zhao
Polygonum urumqiense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum volchovense N. N. Tzvel.
45 additional siblings truncated for brevity.
See the resource file for a full list.

EOL Dynamic Hierarchy Version 2.2.4

Polygonum douglasii Greene (this page)
Polygonum acerosum Ledeb. ex Meisn.
Polygonum acetosum Bieb.
Polygonum afghanicum Meisn.
Polygonum afromontanum Greenway
Polygonum afyonicum Leblebici & Gemici
Polygonum albanicum Jáv.
Polygonum arenastrum Boreau
Polygonum arussense Chiov.
Polygonum aschersonianum H. Gross
Polygonum austiniae Greene
Polygonum aviculare L.
Polygonum bellardii All.
Polygonum biaristatum Aitch. & Hemsl.
Polygonum bidwelliae S. Wats.
Polygonum bolanderi Brew. ex A. Gray
Polygonum borgoicum N. N. Tupitsyna
Polygonum bornmuelleri Litwinow
Polygonum brasiliense K. Koch
Polygonum breviarticulatum Rech. fil.
Polygonum californicum Meisn.
Polygonum cascadense W. H. Baker
Polygonum cashmirense H. Gross
Polygonum cognatum Meisn.
Polygonum corrigioloides Jaub. & Spach
Polygonum crispatum C. B. Clarke
Polygonum czukavinae Sojak
Polygonum ekimianum E. Leblebici, H. Duman & Z. Aytaç
Polygonum engelmannii Greene
Polygonum erectum L.
Polygonum fibrilliferum Kom.
Polygonum glandulosopilosum De Wild.
Polygonum glaucescens N. A. Ivanova ex N. N. Tupitsyna
Polygonum glaucum Nutt.
Polygonum graminifolium Heuffel
Polygonum heterosepalum M. E. Peck & Ownbey
Polygonum huichunense F. Z. Li, Y. T. Hou & C. Y. Qu
Polygonum icaricum Rech. fil.
Polygonum idaeum Hayek
Polygonum ilanense Liu & Ou
Polygonum istanbulicum M. Keskin
Polygonum karacae Zielinski & Botratynski
Polygonum kelloggii Greene
Polygonum lacerum Kunth
Polygonum leptocarpum B. L. Rob.
Polygonum libani Boiss.
Polygonum longipes Halácsy & Charrel
Polygonum marinense T. R. Mert. & Raven
Polygonum maritimum L.
Polygonum melihae Gemici & Kit Tan
Polygonum mesembricum Chrtek
Polygonum mezianum H. Gross
Polygonum minimum S. Wats.
Polygonum minutissimum Z. Wei & Yun-bing Chang
Polygonum norvegicum (Sam.) G. Samuelsson ex Lid
Polygonum nuttallii Small
Polygonum olivascens Rech. fil. & Schiman-Czeika
Polygonum oxyspermum Mey. & Bunge
Polygonum palaestinum Zoh.
Polygonum papillosum P. Hartvig
Polygonum paronychia Cham. & Schltdl.
Polygonum parryi Greene
Polygonum patulum Bieb.
Polygonum plebejum R. Br.
Polygonum podlechii Rech. fil. & Schiman-Czeika
Polygonum polycnemoides Jaub. & Spach
Polygonum polygaloides Meisn.
Polygonum praelongum Coode & Cullen
Polygonum propinquum Ledeb.
Polygonum psammophilum (Bordz. ex Tzvel.) Tzvel.
Polygonum ramosissimum Michx.
Polygonum ramuliflorum Kitagawa
Polygonum recumbens Royle ex Bab.
Polygonum rigidum Skvortz.
Polygonum robertii Loisel.
Polygonum robynsii De Wild.
Polygonum romanum Jacq.
Polygonum rottboellioides Jaub. & Spach
Polygonum ryukyuense Kitagawa
Polygonum salsugineum Bieb.
Polygonum samsunicum Yildirimli & Leblebici
Polygonum sawatchense Small
Polygonum schistosum Czuk.
Polygonum scoparium Req. ex Loisel.
Polygonum setosum Jacq.
Polygonum shastense Brewer ex A. Gray
Polygonum shiheziense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum shuchengense Z. Z. Zhou
Polygonum sivasicum Kit Tan & Yildiz
Polygonum snijmaniae S. Ortiz
Polygonum striatulum Robinson
Polygonum subaphyllum G. P. Sumnevicz
Polygonum sumatranum De Bruyn
Polygonum tachengense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum tenue Michx.
Polygonum tenuissimum A. I. Baranov & Skvortz. ex Vorosh.
Polygonum thymifolium Jaub. & Spach
Polygonum turkestanicum Sumnev.
Polygonum uniflorum Y. X. Ma & Y. T. Zhao
Polygonum urumqiense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum volchovense N. N. Tzvel.
35 additional siblings truncated for brevity.
See the resource file for a full list.

GBIF classification

Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Polygonaceae
Polygonum L.
Polygonum douglasii Greene (this page)
Polygonum achoreum S. F. Blake
Polygonum arenarium Waldst. & Kit.
Polygonum arenastrum Boreau
Polygonum arussense Chiov.
Polygonum aschersonianum H. Gross
Polygonum austiniae Greene
Polygonum baltistanicum Chaudhri
Polygonum bellardii All.
Polygonum biaristatum Aitch. & Hemsl.
Polygonum bidwelliae S. Watson
Polygonum borgoicum N. N. Tupitsȳna
Polygonum brasiliense K. Koch
Polygonum breviarticulatum Rech. fil.
Polygonum caducifolium Vorosch.
Polygonum californicum Meisn.
Polygonum cappadocicum Boiss. & Balansa
Polygonum cascadense W. H. Baker
Polygonum cashmirense H. Gross
Polygonum cedrorum Boiss. & Kotschy
Polygonum chrtekii (Soják) Czerep.
Polygonum corrigioloides Jaub. & Spach
Polygonum cretaceum Komarov
Polygonum criopolitanum Hance
Polygonum crispatum C. B. Clarke
Polygonum czukavinae Soják
Polygonum erectum L.
Polygonum fowleri Robinson
Polygonum glaucum Nutt.
Polygonum heterosepalum M. Peck & Ownbey
Polygonum hickmanii H. R. Hinds & Rand. Morgan
Polygonum huichunense F. Z. Li, Y. T. Hou & C. Y. Qu
Polygonum hyrcanicum Rech. fil.
Polygonum icaricum Rech. fil.
Polygonum idaeum Hayek
Polygonum ilanense Y. C. Liu & C. H. Ou
Polygonum inflexum Komarov
Polygonum istanbulicum M. Keskin
Polygonum karacae J. Zieliński & Borat.
Polygonum kolumense A. P. Khokhr.
Polygonum korthalsii Gand.
Polygonum lacerum Kunth
Polygonum leptocarpum Robinson
Polygonum liaotungense Kitag.
Polygonum libani Boiss.
Polygonum lonchophyllum Fedde
Polygonum longiocreatum Bartlett
Polygonum longipes Halácsy & Charrel
Polygonum majus Piper
Polygonum marinense T. R. Mert. & P. H. Raven
Polygonum mesembricum Chrtek
Polygonum mezianum H. Gross
Polygonum minimum S. Watson
Polygonum mirajabii Chaudhri
Polygonum molliiforme Boiss.
Polygonum norvegicum (Sam.) Sam. ex Lid
Polygonum nuttallii Small
Polygonum obtusifolium Tackholm & Boulos
Polygonum olivascens Rech. fil. & Schiman-Czeika
Polygonum paronychia Cham. & Schltdl.
Polygonum paronychioides C. A. Mey.
Polygonum parryi Greene
Polygonum patulum M. Bieb.
Polygonum polycnemoides Jaub. & Spach
Polygonum polygaloides Meisn.
Polygonum ramosissimum Michx.
Polygonum robynsii De Wild.
Polygonum ryukyuense Kitag.
Polygonum salebrosum Coode & Cullen
Polygonum salignum Willd.
Polygonum salsugineum M. Bieb.
Polygonum samsunicum Ş. Yıldırımlı & E. Leblebici
Polygonum sanguinaria J. Rémy
Polygonum sarobiense Rech. fil.
Polygonum schimperi Vatke ex Engl.
Polygonum schindleri Danser
Polygonum schischkinii Ivanova ex Borodina
Polygonum schistosum Czukav.
Polygonum scoparium Req. ex Loisel.
Polygonum shiheziense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum shuchengense Z. Z. Zhou
Polygonum sivasicum Kit Tan & B. Yildiz
Polygonum snijmaniae S. Ortiz
Polygonum spergulariiforme Meisn. ex Small
Polygonum striatulum B. L. Rob.
Polygonum stypticum Cham. & Schltdl.
Polygonum subaphyllum Sumnev.
Polygonum sylvaticum Skvortz
Polygonum tachengense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum tatewakianum Koji Ito
Polygonum tenoreanum E. Nardi & Raffaelli
Polygonum tenue Michx.
Polygonum tenuissimum A. I. Baranov & Skvortz. ex Vorosch.
Polygonum thymifolium Jaub. & Spach
Polygonum tumidum Delile
Polygonum turkestanicum Sumnev.
Polygonum uniflorum Y. X. Ma & Y. T. Zhao
Polygonum urumqiense F. Z. Li, Y. T. Hou & F. J. Lu
Polygonum vladimiri Czerep.
Polygonum volchovense Tzvelev
Polygonum vvedenskyi Sumnev.
106 additional siblings truncated for brevity.
See the resource file for a full list.

Integrated Taxonomic Information System (ITIS) Taxonomic Hierarchy

Plantae
Viridiplantae
Streptophyta
Embryophyta
Tracheophyta
Spermatophytina
Magnoliopsida
Caryophyllanae
Caryophyllales
Polygonaceae
Polygonum L.
Polygonum douglasii Greene (this page)
Polygonum achoreum S. F. Blake
Polygonum acuminatum Kunth
Polygonum arenarium Waldst. & Kit.
Polygonum argyrocoleon Steud. ex Kunze
Polygonum austiniae Greene
Polygonum aviculare L.
Polygonum bellardii All.
Polygonum bidwelliae S. Watson
Polygonum bolanderi W. H. Brewer
Polygonum californicum Meisn.
Polygonum cascadense W. H. Baker
Polygonum engelmannii Greene
Polygonum equisetiforme Sm.
Polygonum erectum L.
Polygonum fowleri B. L. Rob.
Polygonum franktonii S. J. Wolf & McNeill
Polygonum gabrielae Costea & Tardif
Polygonum glaucum Nutt.
Polygonum heterosepalum M. Peck & Ownbey
Polygonum hickmanii H. Hinds & Rand. Morgan
Polygonum humifusum C. Merck ex K. Koch
Polygonum lacerum Kunth
Polygonum majus (Meisn.) Piper
Polygonum marinense T. R. Mert. & P. H. Raven
Polygonum minimum S. Watson
Polygonum nuttallii Small
Polygonum oxyspermum C. A. Mey. & Bunge ex Ledeb.
Polygonum paronychia Cham. & Schltdl.
Polygonum paronychioides C. A. Mey.
Polygonum parryi Greene
Polygonum patulum M. Bieb.
Polygonum plebeium R. Br.
Polygonum polycnemoides Jaub. & Spach
Polygonum polygaloides Meisn.
Polygonum ramosissimum Michx.
Polygonum sawatchense Small
Polygonum segetum Kunth
Polygonum shastense W. H. Brewer
Polygonum spergulariiforme Meisn. ex Small
Polygonum striatulum B. L. Rob.
Polygonum tenue Michx.
Polygonum utahense Brenckle & Cottam

NCBI

root
cellular organisms
Eukaryota
Viridiplantae
Streptophyta
Streptophytina
Embryophyta
Tracheophyta
Euphyllophyta
Spermatophyta
Magnoliopsida
Mesangiospermae
eudicotyledons
Gunneridae
Pentapetalae
Caryophyllales
Polygonaceae
Polygonoideae
Polygoneae
Polygonum
Polygonum douglasii (this page)
Polygonum douglasii subsp. douglasii
Polygonum acerosum
Polygonum acetosum
Polygonum achoreum
Polygonum afghanicum
Polygonum agrestinum
Polygonum alpestre
Polygonum americanum
Polygonum arenarium
Polygonum arenastrum
Polygonum argyrocoleon
Polygonum aridum
Polygonum articulatum
Polygonum aschersonianum
Polygonum austiniae
Polygonum aviculare
Polygonum basiramium
Polygonum bellardii
Polygonum biaristatum
Polygonum bidwelliae
Polygonum boreale
Polygonum bornmuelleri
Polygonum botuliforme
Polygonum bowenkampii
Polygonum calcatum
Polygonum cascadense
Polygonum cognatum
Polygonum corrigioloides
Polygonum delicatulum
Polygonum delopyrum
Polygonum dentoceras
Polygonum dumosum
Polygonum effusum
Polygonum engelmannii
Polygonum equisetiforme
Polygonum erectum
Polygonum euxinum
Polygonum fibrilliferum
Polygonum fimbriatum
Polygonum floribundum
Polygonum fowleri
Polygonum glaucescens
Polygonum griffithii
Polygonum humifusum
Polygonum inflexum
Polygonum khajeh-jamali
Polygonum kotovi
Polygonum liaotungense
Polygonum luzuloides
Polygonum majus
Polygonum maritimum
Polygonum mesembricum
Polygonum mezianum
Polygonum milletii
Polygonum minimum
Polygonum molliiforme
Polygonum myrtillifolium
Polygonum nesomii
Polygonum norvegicum
Polygonum novoascanicum
Polygonum nuttallii
Polygonum ochotense
Polygonum oxanum
Polygonum oxyspermum
Polygonum palaestinum
Polygonum palmatum
Polygonum paniculatum
Polygonum paraguayense
Polygonum parksii
Polygonum paronychia
Polygonum paronychioides
Polygonum patuliforme
Polygonum patulum
Polygonum phytolaccifolium
Polygonum pinicola
Polygonum plebeium
Polygonum polycnemoides
Polygonum polygaloides
Polygonum polygamum
Polygonum propinquum
Polygonum pulchrum
Polygonum pyrodiodes
Polygonum ramosissimum
Polygonum recumbens
Polygonum rigidum
Polygonum rurivagum
Polygonum salicornioides
Polygonum sawatchense
Polygonum scabrum
Polygonum scoparium
Polygonum setosulum
Polygonum shastense
Polygonum smallianum
Polygonum spergulariiforme
Polygonum spinosum
Polygonum strindbergii
Polygonum suffultum
Polygonum tenue
Polygonum undulatum
Polygonum vagans
unclassified Polygonum
15 additional siblings truncated for brevity.
See the resource file for a full list.

wikidata_hierarchy tar gz

Biota
Eukaryota
Plantae
Viridiplantae
Embryophyta
Tracheophyta
Spermatophytina
Magnoliophyta
Magnoliopsida
Caryophyllidae
Polygonales
Polygonaceae
Polygonoideae
Polygoneae
Polygonum
Polygonum douglasii (this page)
Polygonum douglasii subsp. douglasii
Polygonum douglasii subsp. engelmannii
Polygonum douglasii subsp. johnstonii
Polygonum douglasii subsp. majus
Polygonum douglasii subsp. nuttallii
Polygonum douglasii var. johnstonii
Polygonum douglasii var. utahense
Polygonum acerosum
Polygonum acetosum
Polygonum argyrocoleon
Polygonum assamicum
Polygonum aubertii
Polygonum barbatum
Polygonum biconvexum
Polygonum bistorta
Polygonum blumei
Polygonum bungeanum
Polygonum calcatum
Polygonum campanulatum
Polygonum carneum
Polygonum cathayanum
Polygonum chinense
Polygonum conspicuum
Polygonum coriaceum
Polygonum coriarium
Polygonum cyanandrum
Polygonum darrisii
Polygonum delicatulum
Polygonum dichotomum
Polygonum dissitiflorum
Polygonum divaricatum
Polygonum ellipticum
Polygonum emodi
Polygonum evenkiense
Polygonum fertile
Polygonum filicaule
Polygonum foliosum
Polygonum forrestii
Polygonum glabratum
Polygonum glabrum
Polygonum glaciale
Polygonum glaucum
Polygonum hastatosagittatum
Polygonum honanense
Polygonum hookeri
Polygonum huananense
Polygonum humifusum
Polygonum humile
Polygonum intramongolicum
Polygonum jucundum
Polygonum lapathifolium
Polygonum lichiangense
Polygonum limicola
Polygonum limosum
Polygonum longisetum
Polygonum maackianum
Polygonum micranthum
Polygonum microcephalum
Polygonum milletii
Polygonum molle
Polygonum molliiforme
Polygonum muricatum
Polygonum nodosum
Polygonum nummularifolium
Polygonum ochotense
Polygonum ocreatum
Polygonum pacificum
Polygonum palmatum
Polygonum paralimicola
Polygonum paronychioides
Polygonum patulum
Polygonum perfoliatum
Polygonum pinetorum
Polygonum platyphyllum
Polygonum plebeium
Polygonum polycnemoides
Polygonum popovii
Polygonum posumbu
Polygonum praetermissum
Polygonum pubescens
Polygonum pulchrum
Polygonum purpuratum
Polygonum purpureonervosum
Polygonum rigidum
Polygonum runcinatum
Polygonum schischkinii
Polygonum senticosum
Polygonum ser. Annui
Polygonum ser. Coriopolitana
Polygonum ser. Palmatifolia
Polygonum ser. Perennes
Polygonum sieboldii
Polygonum sinomontanum
Polygonum songaricum
Polygonum strindbergii
Polygonum subscaposum
Polygonum suffultoides
Polygonum suffultum
Polygonum taquetii
Polygonum tibeticum
Polygonum tinctorium
Polygonum tortuosum
Polygonum umbrosum
Polygonum vacciniifolium
Polygonum viscosum
Polygonum wallichii
Polygonum wugongshanensis
465 additional siblings truncated for brevity.
See the resource file for a full list.
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